Burkert Type 8709 User Manual
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Operation and function
possible binary input functions
function
description
Actuate Autotune
Start of Autotune function for optimization of the control parameters
to the conditions available in the system, description see Chapter
Switch to characteristic 2
The calibration curve saved under Gas 2 as well as using all param-
eters entered there.
Reset totalizer
The integrated totalizer (quantity integrator) is reset to 0.
Start set-point value profile
Start of the saved set-point value profile, description see Chapter
Control mode
Switch to control mode for the systematic opening of the integrated
proportional valve, description see Chapter
LFM.
Correct safety value
5)
Correct the safety value stored in the device as a flow-rate set-point
value.
The flow-rate set-point value applied analogically or transmitted by the
field bus is ignored in this case.
Close valve completely
5)
Valve closed completely.
The flow-rate set-point value is ignored in this case.
Open valve completely
5)
Valve opened completely.
The flow-rate set-point value is ignored in this case.
5)
The operating principle of the binary input (active / inactive) can be selected for these functions
Binary input functions
Table 5:
standard assignment of the binary inputs:
input
configuration
Binary input 1
LFC: Actuate Autotune
LFM: unused
Binary input 2
LFC: Open valve completely
LFM: unused
Binary input 3
6)
unused
6)
not available for 8718 / 8708
Standard assignment of the binary inputs
Table 6:
english
Type 8718, 8719 / 8708, 8709